Take your pick for your next primary for CQB games that combines a PP-19-01 with a PDW stock. LCT Airsoft provided some images of their PDW 9MM AEGS with the TK-PDW-9MM being more along the classic lines and the ZK-PDW-9MM along their Z series line with a railed handguard. They have a three-position PDW stock that has quick detach cover for easy access to the battery compartment for rapid battery change. The TK-PDW-9MM also has a  top rail and under rail to attach weapons accessories.